# encoding: utf-8

from PyQt4.QtCore import *
from PyQt4.QtGui import *
from woo.qt.ObjectEditor import *
import woo
import woo.qt
import woo.config
from woo.dem import *
#from woo.sparc import *
from woo.core import *

try: from woo.gl import *
except ImportError: pass


class EngineInspector(QWidget):
	def __init__(self,parent=None):
		QWidget.__init__(self,parent)
		grid=QGridLayout(self); grid.setSpacing(0); grid.setMargin(0)
		self.serEd=SeqObject(parent=None,getter=lambda:woo.master.scene.engines,setter=lambda x:setattr(woo.master.scene,'engines',x),T=Engine,trait=[t for t in Scene._attrTraits if t.name=='engines'][0],path='woo.master.scene.engines')
		grid.addWidget(self.serEd)
		self.setLayout(grid)
#class MaterialsInspector(QWidget):
#	def __init__(self,parent=None):
#		QWidget.__init__(self,parent)
#		grid=QGridLayout(self); grid.setSpacing(0); grid.setMargin(0)
#		self.serEd=SeqObject(parent=None,getter=lambda:O.materials,setter=lambda x:setattr(O,'materials',x),serType=Engine)
#		grid.addWidget(self.serEd)
#		self.setLayout(grid)

class CellInspector(QWidget):
	def __init__(self,parent=None):
		QWidget.__init__(self,parent)
		self.layout=QVBoxLayout(self) #; self.layout.setSpacing(0); self.layout.setMargin(0)
		self.periCheckBox=QCheckBox('periodic boundary',self)
		self.periCheckBox.clicked.connect(self.update)
		self.layout.addWidget(self.periCheckBox)
		self.scroll=QScrollArea(self); self.scroll.setWidgetResizable(True)
		self.layout.addWidget(self.scroll)
		self.setLayout(self.layout)
		self.refresh()
		self.refreshTimer=QTimer(self)
		self.refreshTimer.timeout.connect(self.refresh)
		self.refreshTimer.start(1000)
	def refresh(self):
		S=woo.master.scene
		self.periCheckBox.setChecked(S.periodic)
		editor=self.scroll.widget()
		if not S.periodic and editor: self.scroll.takeWidget()
		if (S.periodic and not editor) or (editor and editor.ser!=S.cell):
			self.scroll.setWidget(ObjectEditor(S.cell,parent=self,showType=True,path='woo.master.cell'))
	def update(self):
		self.scroll.takeWidget() # do this before changing periodicity, otherwise the ObjectEditor will raise exception about None object
		S=woo.master.scene
		S.periodic=self.periCheckBox.isChecked()
		self.refresh()
		
class SceneInspector(QWidget):
	def __init__(self,parent=None):
		QWidget.__init__(self,parent)
		grid=QGridLayout(self); grid.setSpacing(0); grid.setMargin(0)
		self.serEd=ObjectEditor(woo.master.scene,parent=self,showType=False,path='woo.master.scene')
		grid.addWidget(self.serEd)
		self.setLayout(grid)

def makeBodyLabel(b):
	ret=unicode(b.id)+u' '
	if not b.shape: ret+=u'⬚'
	else:
		typeMap={'Sphere':u'⚫','Facet':u'△','FlexFacet':u'⧋','Wall':u'┃','Box':u'⎕','Cylinder':u'⌭','Clump':u'☍','InfCylinder':u'◎','Ellipsoid':u'⬯','Capsule':u'O'}
		ret+=typeMap.get(b.shape.__class__.__name__,u'﹖')
	if (b.shape.nodes)==1 and b.blocked!='': ret+=u'⚓'
	return ret

def getBodyIdFromLabel(label):
	try:
		return int(unicode(label).split()[0])
	except ValueError:
		print 'Error with label:',unicode(label)
		return -1

class BodyInspector(QWidget):
	def __init__(self,parId=None,parent=None,bodyLinkCallback=None,intrLinkCallback=None):
		QWidget.__init__(self,parent)
		self.parId=(0 if parId==None else parId)
		if 'opengl' in woo.config.features:
			v=woo.qt.views()
			if parId==None and len(v)>0 and v[0].selection>0: self.bodyId=v[0].selection
		self.idGlSync=self.parId
		self.bodyLinkCallback,self.intrLinkCallback=bodyLinkCallback,intrLinkCallback
		self.bodyIdBox=QSpinBox(self)
		self.bodyIdBox.setMinimum(0)
		self.bodyIdBox.setMaximum(1000000000)
		self.bodyIdBox.setValue(self.parId)
		self.intrWithCombo=QComboBox(self);
		self.gotoBodyButton=QPushButton(u'→ #',self)
		self.gotoIntrButton=QPushButton(u'→ #+#',self)
		# id selector
		topBoxWidget=QWidget(self); topBox=QHBoxLayout(topBoxWidget); topBox.setMargin(0); #topBox.setSpacing(0); 
		hashLabel=QLabel('#',self); hashLabel.setFixedWidth(8)
		topBox.addWidget(hashLabel)
		topBox.addWidget(self.bodyIdBox)
		self.plusLabel=QLabel('+',self); topBox.addWidget(self.plusLabel)
		hashLabel2=QLabel('#',self); hashLabel2.setFixedWidth(8); topBox.addWidget(hashLabel2)
		topBox.addWidget(self.intrWithCombo)
		topBox.addStretch()
		topBox.addWidget(self.gotoBodyButton)
		topBox.addWidget(self.gotoIntrButton)
		topBoxWidget.setLayout(topBox)
		# forces display
		forcesWidget=QFrame(self); forcesWidget.setFrameShape(QFrame.Box); self.forceGrid=QGridLayout(forcesWidget); 
		self.forceGrid.setVerticalSpacing(0); self.forceGrid.setHorizontalSpacing(9); self.forceGrid.setMargin(4);
		for i,j in itertools.product((0,1,2,3),(-1,0,1,2)):
			lab=QLabel('<small>'+('force','torque','move','rot')[i]+'</small>' if j==-1 else ''); self.forceGrid.addWidget(lab,i,j+1);
			if j>=0: lab.setAlignment(Qt.AlignRight)
			if i>1: lab.hide() # do not show forced moves and rotations by default (they will appear if non-zero)
		self.showMovRot=False
		#
		self.grid=QGridLayout(self); self.grid.setSpacing(0); self.grid.setMargin(0)
		self.grid.addWidget(topBoxWidget)
		self.grid.addWidget(forcesWidget)
		self.scroll=QScrollArea(self)
		self.scroll.setWidgetResizable(True)
		self.grid.addWidget(self.scroll)
		self.tryShowBody()
		self.bodyIdBox.valueChanged.connect(self.bodyIdSlot)
		self.gotoBodyButton.clicked.connect(self.gotoBodySlot)
		self.gotoIntrButton.clicked.connect(self.gotoIntrSlot)
		self.refreshTimer=QTimer(self)
		self.refreshTimer.timeout.connect(self.refreshEvent)
		self.refreshTimer.start(1000)
		self.intrWithCombo.addItems(['0']); self.intrWithCombo.setCurrentIndex(0);
		self.intrWithCombo.setMinimumWidth(80)
		if self.parId==None: self.setWindowTitle('Particle')
		else: self.setWindowTitle('Particle #%d'%self.parId)
		self.gotoBodySlot()
	def displayForces(self):
		if self.parId==None: return
		S=woo.master.scene
		b=S.dem.par[self.parId]
		if not b.shape: noshow='no shape'
		elif len(b.shape.nodes)==0: noshow='no nodes'
		elif len(b.shape.nodes)>1: noshow='multinodal'
		elif not b.shape.nodes[0].dem: noshow='no Node.dem'
		else: noshow=None
		if noshow:
			self.forceGrid.itemAtPosition(0,1).widget().setText('<small>'+noshow+'</small>')
			for i,j in ((0,2),(0,3),(1,1),(1,2),(1,3)): self.forceGrid.itemAtPosition(i,j).widget().setText('')
		else:
			try:
				d=b.shape.nodes[0].dem
				val=[d.force,d.torque]
				rows=(0,1)
				for i,j in itertools.product(rows,(0,1,2)): self.forceGrid.itemAtPosition(i,j+1).widget().setText('<small>'+str(val[i][j])+'</small>')
			except IndexError:pass
	def tryShowBody(self):
		try:
			if self.parId==None: raise IndexError()
			b=woo.master.scene.dem.par[self.parId]
			self.serEd=ObjectEditor(b,showType=True,parent=self,path='woo.master.scene.dem.par[%d]'%self.parId)
		except IndexError:
			if self.bodyIdBox.hasFocus(): return False
			self.serEd=QFrame(self)
			self.parId=None
		self.scroll.setWidget(self.serEd)
		return True
	def changeIdSlot(self,newId):
		self.bodyIdBox.setValue(newId);
		self.bodyIdSlot(newId)
	def bodyIdSlot(self,currId):
		self.parId=currId
		if not self.tryShowBody():
			self.bodyIdBox.setStyleSheet('QWidget { background: red }')
			return # we still have focus, don't attempt to change
		else:
			self.bodyIdBox.setStyleSheet('QWidget { background: none }')
		# self.parId=currId # self.bodyIdBox.value()
		if self.parId==None: self.setWindowTitle('Particle')
		else: self.setWindowTitle('Particle #%d'%self.parId)
		self.refreshEvent()
	def gotoBodySlot(self):
		try:
			id=int(getBodyIdFromLabel(self.intrWithCombo.currentText()))
		except ValueError: return # empty id
		if not self.bodyLinkCallback:
			self.bodyIdBox.setValue(id); self.parId=id
		else: self.bodyLinkCallback(id)
	def gotoIntrSlot(self):
		ids=self.bodyIdBox.value(),getBodyIdFromLabel(self.intrWithCombo.currentText())
		if not self.intrLinkCallback:
			self.ii=InteractionInspector(ids)
			self.ii.show()
		else: self.intrLinkCallback(ids)
	def refreshEvent(self):
		S=woo.master.scene
		try: S.dem.par[self.parId]
		except: self.parId=None # invalidate deleted body
		# no body shown yet, try to get the first one...
		if self.parId==None and len(S.dem.par)>0:
			try:
				# print 'SET ZERO'
				b=S.dem.par[0]; self.bodyIdBox.setValue(0); self.parId=0
			except IndexError: pass
		if 'opengl' in woo.config.features:
			v=woo.qt.views()
			if len(v)>0 and v[0].selection!=self.parId:
				if self.idGlSync==self.parId: # changed in the viewer, reset ourselves
					self.parId=self.idGlSync=v[0].selection; self.changeIdSlot(self.parId)
					return
				elif self.parId!=None: v[0].selection=self.idGlSync=self.parId # changed here, set in the viewer
		meId=self.bodyIdBox.value(); pos=self.intrWithCombo.currentIndex()
		try:
			meLabel=makeBodyLabel(S.dem.par[meId])
		except IndexError: meLabel=u'…'
		self.plusLabel.setText(' '.join(meLabel.split()[1:])+'  <b>+</b>') # do not repeat the id
		self.bodyIdBox.setMaximum(len(S.dem.par)-1)
		try: others=S.dem.par[meId].con
		except IndexError: others=[]
		#(i.id1 if i.id1!=meId else i.id2) for i in O.interactions.withBody(self.bodyIdBox.value()) if i.isReal]
		others.sort()
		self.intrWithCombo.clear()
		self.intrWithCombo.addItems([makeBodyLabel(S.dem.par[i]) for i in others])
		if pos>self.intrWithCombo.count() or pos<0: pos=0
		self.intrWithCombo.setCurrentIndex(pos);
		other=self.intrWithCombo.itemText(pos)
		if other=='':
			self.gotoBodyButton.setEnabled(False); self.gotoIntrButton.setEnabled(False)
			other=u'∅'
		else:
			self.gotoBodyButton.setEnabled(True); self.gotoIntrButton.setEnabled(True)
		self.gotoBodyButton.setText(u'→ %s'%other)
		self.gotoIntrButton.setText(u'→ %s + %s'%(meLabel,other))
		self.displayForces()
		
class InteractionInspector(QWidget):
	def __init__(self,ids=None,parent=None,bodyLinkCallback=None):
		QWidget.__init__(self,parent)
		self.bodyLinkCallback=bodyLinkCallback
		self.ids=ids
		self.intrLinIxBox=QSpinBox(self)
		self.intrLinIxBox.setMinimum(0)
		self.intrLinIxBox.setMaximum(1000000000)
		self.gotoId1Button=QPushButton(u'#…',self)
		self.gotoId2Button=QPushButton(u'#…',self)
		self.gotoId1Button.clicked.connect(self.gotoId1Slot)
		self.gotoId2Button.clicked.connect(self.gotoId2Slot)
		self.intrLinIxBox.valueChanged.connect(self.setLinIxSlot)
		topBoxWidget=QWidget(self)
		topBox=QHBoxLayout(topBoxWidget)
		topBox.addWidget(self.intrLinIxBox)
		topBox.addWidget(self.gotoId1Button)
		labelPlus=QLabel('+',self); labelPlus.setAlignment(Qt.AlignHCenter)
		topBox.addWidget(labelPlus)
		topBox.addWidget(self.gotoId2Button)
		topBoxWidget.setLayout(topBox)
		self.setWindowTitle(u'No contact')
		self.grid=QGridLayout(self); self.grid.setSpacing(0); self.grid.setMargin(0)
		self.grid.addWidget(topBoxWidget,0,0)
		self.scroll=QScrollArea(self)
		self.scroll.setWidgetResizable(True)
		self.grid.addWidget(self.scroll)
		self.refreshTimer=QTimer(self)
		self.refreshTimer.timeout.connect(self.refreshEvent)
		self.refreshTimer.start(1000)
		if self.ids: self.setupInteraction()
	def setupInteraction(self):
		'Change view; called whenever the interaction to be displayed changes'
		S=woo.master.scene
		try:
			if self.ids==None: raise IndexError() # to be caught right away
			intr=S.dem.con[self.ids] # also might raise IndexError, if the contact is dead
			if not intr: raise IndexError()
			self.intrLinIxBox.setValue(intr.linIx)
			self.serEd=ObjectEditor(intr,showType=True,parent=self.scroll,path='woo.master.scene.dem.con[%d,%d]'%(self.ids[0],self.ids[1]))
			self.scroll.setWidget(self.serEd)
			self.gotoId1Button.setText('#'+makeBodyLabel(S.dem.par[self.ids[0]]))
			self.gotoId2Button.setText('#'+makeBodyLabel(S.dem.par[self.ids[1]]))
			self.setWindowTitle('Contact #%d + #%d'%(self.ids[0],self.ids[1]))
		except (IndexError,):
			if self.ids:  # reset view (there was an interaction)
				self.ids=None
				self.serEd=QFrame(self.scroll); self.scroll.setWidget(self.serEd) 
				self.setWindowTitle('No contact')
				self.gotoId1Button.setText(u'#…'); self.gotoId2Button.setText(u'#…');
	def gotoId(self,bodyId):
		if self.bodyLinkCallback: self.bodyLinkCallback(bodyId)
		else: self.bi=BodyInspector(bodyId); self.bi.show()
	def setLinIxSlot(self,linIx):
		S=woo.master.scene
		try:
			C=S.dem.con[linIx]
			self.ids=C.id1,C.id2
			self.setupInteraction()
		except IndexError: pass
	def gotoId1Slot(self): self.gotoId(self.ids[0])
	def gotoId2Slot(self): self.gotoId(self.ids[1])
	def refreshEvent(self):
		S=woo.master.scene
		self.intrLinIxBox.setMaximum(len(S.dem.con)-1)
		# no ids yet -- try getting the first interaction, if it exists
		if not self.ids:
			try:
				i=S.dem.con[0]
				self.ids=i.id1,i.id2
				self.setupInteraction()
				return
			except IndexError: return # no interaction exists at all
		try: # try to fetch the contact we have
			c=S.dem.con[self.ids[0],self.ids[1]]
			self.intrLinIxBox.setValue(c.linIx) # update linIx, it can change asynchronously
		except (IndexError,AttributeError):
			self.ids=None
			self.setupInteraction() # will make it empty
			
class SimulationInspector(QWidget):
	def __init__(self,parent=None):
		S=woo.master.scene
		QWidget.__init__(self,parent)
		self.setWindowTitle("Simulation Inspection")
		self.setWindowIcon(QIcon(":/woo-logo.svg"))
		self.tabWidget=QTabWidget(self)
		demField=S.dem if S.hasDem else None
		self.engineInspector=EngineInspector(parent=None)
		self.bodyInspector=BodyInspector(parent=None,intrLinkCallback=self.changeIntrIds) if demField else None
		self.intrInspector=InteractionInspector(parent=None,bodyLinkCallback=self.changeBodyId) if demField else None
		self.cellInspector=CellInspector(parent=None)
		self.sceneInspector=SceneInspector(parent=None)
		for i,name,widget in [(0,'Engines',self.engineInspector),(1,'Particles',self.bodyInspector),(2,'Contacts',self.intrInspector),(3,'Cell',self.cellInspector),(4,'Scene',self.sceneInspector)]:
			if widget: self.tabWidget.addTab(widget,name)

		# add fields
		for i,f in enumerate(S.fields):
			path='woo.master.scene.fields[%d]'%i
			if S.hasDem and f==S.dem: path='woo.master.scene.dem'
			#if S.hasSparc and f==S.sparc: path='woo.master.scene.sparc'
			self.tabWidget.addTab(ObjectEditor(f,parent=None,path=path,showType=True),'%d. '%i+path)
		grid=QGridLayout(self); grid.setSpacing(0); grid.setMargin(0)
		grid.addWidget(self.tabWidget)
		self.setLayout(grid)
	def changeIntrIds(self,ids):
		self.tabWidget.removeTab(2); self.intrInspector.close()
		self.intrInspector=InteractionInspector(ids=ids,parent=None,bodyLinkCallback=self.changeBodyId)
		self.tabWidget.insertTab(2,self.intrInspector,'Contacts')
		self.tabWidget.setCurrentIndex(2)
	def changeBodyId(self,id):
		self.bodyInspector.changeIdSlot(id)
		self.tabWidget.setCurrentIndex(1)
		
